Cold weather is here, and so are inversions. The National Weather Service's Boise branch captured a timelapse of clouds rolling in over the Treasure Valley Dec.6 and socking in chilly air, as seen from Bogus Basin.

Here is a simulation of ground motion after a magnitude 8 earthquake on the San Andreas fault, showing ground shaking throughout southern California for more than 75 seconds after the rupture begins near Parkfield. San Diego Supercomputer Center researchers led the development of the simulation.

The National Weather Service in Boise reports the hazy horizon and moderate air quality in the Treasure Valley are expected to stick around "for the foreseeable future" while fires burn in central Oregon and elsewhere.